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Systems and methods for securely booting a computer with a trusted processing module

  • US 7,725,703 B2
  • Filed: 01/07/2005
  • Issued: 05/25/2010
  • Est. Priority Date: 01/07/2005
  • Status: Active Grant
First Claim
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1. A computer readable storage medium bearing instructions for a secure boot process on a computer with a hardware security module (HSM) that contains recorded values, compares submitted values to the recorded values, and releases a secret if the submitted values are correct, said computer readable medium comprising:

  • instructions for submitting at least one value to the HSM, wherein if said at least one value is correct, the HSM releases a first secret;

    instructions for retrieving the first secret;

    instructions for decrypting data using information that is accessible due to retrieving of the first secret, wherein the execution of said instructions for decrypting produces decrypted data;

    instructions for at least a portion of a computer boot process, wherein said computer boot process cannot complete a normal boot without said decrypted data; and

    instructions for submitting at least one replacement value to the HSM to replace the at least one value, wherein said at least one replacement value revokes access to said first secret and, if said replacement value is correct, the HSM releases a second secret required to continue the normal boot.

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